package com.itheima.reggie.controller;

/*


 */

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.emtity.Category;
import com.itheima.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.lang.model.element.VariableElement;
import java.util.List;

@Slf4j
@RequestMapping("/category")
@RestController
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    //新增菜品，套餐系列
    @PostMapping
    public R<String> save(@RequestBody Category category){
        log.info("category:{}",category);
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    //分页查询
    @GetMapping("/page")
    public R<Page> page(int page,int pageSize){
        //分页构造器
        Page<Category> pageInfo = new Page<>(page, pageSize);
        //条件构造器
        //SELECT *  FROM category   ORDER BY sort LIMIT  0 , 10
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        lqw.orderByAsc(Category::getSort);

        //分页查询
        categoryService.page(pageInfo,lqw);
        //返回R对象,R对象携带Page(total,records)
        return R.success(pageInfo);
    }

    //根据id删除
    @DeleteMapping
    public R<String> delete(Long id){
        //直接调用categoryService中我们自定义的remove方法。
        categoryService.remove(id);
        return R.success("删除成功");
    }

    //修改分类
    @PutMapping
    public R<String> update(@RequestBody Category category){
        log.info("修改分类信息：{}",category);
        categoryService.updateById(category);
        return R.success("修改成功");
    }

    //根据条件查询分类书库
    //在菜品管理-->新增菜品窗口-->菜品选择，要显示所有菜品分类
    //GET http://localhost:8080/category/list?type=1
    @GetMapping("/list")
    public R<List<Category>> list(Category category){
        //SELECT * FROM category WHERE TYPE=1 ORDER BY sort desc, update_time asc
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        lqw.eq(category.getType() != null,Category::getType,category.getType());
        lqw.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        List<Category> list = categoryService.list(lqw);
        return R.success(list);
    }
}
